# Commercial solar installation: Commercial Solar Price Index

> The median published figure in the Commercial Solar Price Index is 750 GBP across 8 figures from 7 sources' own pages (range 700 to 900 GBP), read 11 October 2026.

Roofing Quotes UK · https://roofingquotesuk.com/datasets/commercial-solar-price-index/ · computed 2026-10-19

**Median published figure:** 750 GBP (range 700 to 900 GBP; 8 published figures; 7 of 33 sources read publish one).

7 of the 33 named sources read in full publish a figure; 26 publish none, read 11 October 2026.

The median is unchanged since 26 September 2026 (was 750 GBP across 7).

## By system size band

| Breakdown | Median | Range | Sources |
|---|---|---|---|
| system size band 100-250 | 750 GBP | 750 to 750 GBP | 1 |

## Every figure, with its source

One row per source: the figure the source's own page publishes, the page, and the day it was read.

| Source | Figure | Breakdown | Read |
|---|---|---|---|
| [Solar Panels for Businesses, commercial solar panel cost 2026](https://solarpanelsforbusinesses.co.uk/blog/commercial-solar-panel-cost-uk-2026/) | 900 GBP |  | 2026-10-11 |
| [Spectrum Energy Systems, commercial solar panels cost UK](https://spectrumenergysystems.co.uk/articles/commercial-solar-panels-cost-uk/) | 850 GBP |  | 2026-10-11 |
| [Solar Panels for Factories, factory solar panel costs](https://solarpanelsforfactories.co.uk/factory-solar-panel-costs-uk-2025/) | 800 GBP |  | 2026-10-11 |
| [Commercial Solar Panels Installation, cost per square foot](https://commercialsolarpanelsinstallation.co.uk/commercial-solar-panel-cost-per-square-foot/) | 750 GBP |  | 2026-10-11 |
| [Solar4Good, commercial solar costs UK 2026](https://solar4good.co.uk/blogs/commercial-solar-cost-uk-2026/) | 750 GBP |  | 2026-10-11 |
| [Solar Panels for Businesses, commercial solar panel cost 2026](https://solarpanelsforbusinesses.co.uk/blog/commercial-solar-panel-cost-uk-2026/) | 750 GBP | 100-250 | 2026-10-11 |
| [APN Solar, commercial solar costs](https://www.apnsolar.co.uk/commercial-solar-costs) | 700 GBP |  | 2026-10-11 |
| [nu.energy, commercial solar panel costs price breakdown](https://nu.energy/blog/commercial-solar-panel-costs-uk-price-breakdown) | 700 GBP |  | 2026-10-11 |

## The sentence each figure was read from (8)

- [Solar Panels for Businesses, commercial solar panel cost 2026](https://solarpanelsforbusinesses.co.uk/blog/commercial-solar-panel-cost-uk-2026/), read 2026-10-11: "At £900–£1,200/kW the headline ex-VAT figure runs from £45,000 at the bottom of the band to £60,000 at the top."
- [Spectrum Energy Systems, commercial solar panels cost UK](https://spectrumenergysystems.co.uk/articles/commercial-solar-panels-cost-uk/), read 2026-10-11: "The most useful number for budgeting is the price per kilowatt-peak installed. Across the commercial systems we have installed and quoted through 2026, that figure sits between £850 and £1,100 per kWp, ex-VAT."
- [Solar Panels for Factories, factory solar panel costs](https://solarpanelsforfactories.co.uk/factory-solar-panel-costs-uk-2025/), read 2026-10-11: "Average Cost per kW: £800-1,200 (down from £3,500 in 2010)"
- [Commercial Solar Panels Installation, cost per square foot](https://commercialsolarpanelsinstallation.co.uk/commercial-solar-panel-cost-per-square-foot/), read 2026-10-11: "UK commercial solar in 2026 costs approximately £750–£1,050 per kWp all-in, with the lower end applying to systems over 200kWp using premium panels at volume pricing."
- [Solar4Good, commercial solar costs UK 2026](https://solar4good.co.uk/blogs/commercial-solar-cost-uk-2026/), read 2026-10-11: "Installation costs range from £750-900 per kW depending on system size"
- [Solar Panels for Businesses, commercial solar panel cost 2026](https://solarpanelsforbusinesses.co.uk/blog/commercial-solar-panel-cost-uk-2026/), read 2026-10-11: "At £750–£950/kW the band is £150,000 at the lower end and £190,000 at the upper end ex VAT."
- [APN Solar, commercial solar costs](https://www.apnsolar.co.uk/commercial-solar-costs), read 2026-10-11: "As a broad 2026 guide, commercial installations typically cost around £700–£1,100 per kWp, with wider market estimates extending from approximately £660 to £1,200 per kWp depending upon system size and installation complexity."
- [nu.energy, commercial solar panel costs price breakdown](https://nu.energy/blog/commercial-solar-panel-costs-uk-price-breakdown), read 2026-10-11: "Larger installations benefit from economies of scale, bringing the per-kilowatt-peak (kWp) price down significantly compared with smaller systems. As a general guide, commercial solar installations currently cost between £700 and £1,100 per kWp fully installed."

## Read in full, publishes no figure

- [Spectrum Energy Systems, solar panel installation cost UK 2026](https://spectrumenergysystems.co.uk/articles/solar-panel-installation-cost-uk-2026/), read 2026-10-11: every candidate on the page was refused
- [Commercial Solar Panels Installation, commercial solar panel cost](https://commercialsolarpanelsinstallation.co.uk/commercial-solar-panel-cost/), read 2026-10-11: every candidate on the page was refused
- [Commercial Solar Panels Installation, cost guide](https://commercialsolarpanelsinstallation.co.uk/cost/), read 2026-10-11: every candidate on the page was refused
- [Empire Electrical Innovations, commercial solar panel installation cost 2026](https://www.empireelectricalinnovations.co.uk/post/commercial-solar-panel-installation-cost-2026-the-complete-uk-business-guide), read 2026-10-11: every candidate on the page was refused
- [nu.energy, commercial solar panels cost UK guide 2026](https://nu.energy/blog/commercial-solar-panels-cost-uk-guide-2026), read 2026-10-11: every candidate on the page was refused
- [Astound Cleaning, commercial solar panel cleaning cost](https://www.astoundcleaning.co.uk/commercial-solar-panel-cleaning-cost), read 2026-10-11: every candidate on the page was refused
- [Solar Panels for Businesses, solar panel cleaning cost UK](https://solarpanelsforbusinesses.co.uk/solar-panel-cleaning-cost-uk/), read 2026-10-11: every candidate on the page was refused
- [Same Day Jetwash, solar panel cleaning cost UK](https://samedayjetwash.com/guides/solar-panel-cleaning-cost-uk), read 2026-10-11: every candidate on the page was refused
- [Solar Cleaning South West, commercial solar panel cleaning costs](https://solarcleaningsouthwest.co.uk/commercial-solar-panel-cleaning-costs-in-the-uk-complete-pricing-guide/), read 2026-10-11: every candidate on the page was refused
- [Arc Renewables, solar power maintenance costs in the UK](https://www.arcrenewables.co.uk/solar-power-maintenance-costs-in-the-uk/), read 2026-09-11: every candidate on the page was refused
- [Solar Service UK, solar panel repair costs](https://solarservice.uk/blog/how-much-does-solar-panel-repair-cost-in-the-uk/), read 2026-09-11: every candidate on the page was refused
- [Smart Solar Homes, replacing a solar inverter](https://smartsolarhomes.co.uk/articles/replacing-solar-inverter-uk), read 2026-10-11: every candidate on the page was refused
- [Simple Green Energy, solar inverter replacement cost UK](https://www.simplegreenenergy.org/solar-inverter-replacement-cost-uk/), read 2026-10-11: every candidate on the page was refused
- [GreenMatch, inverter replacement](https://www.greenmatch.co.uk/solar-energy/inverter-replacement), read 2026-10-11: every candidate on the page was refused
- [Best Builders, solar panel repair cost UK](https://www.bestbuilders.co.uk/costs/solar-panel-repair-cost-uk), read 2026-10-11: every candidate on the page was refused
- [Greentech Renewables UK, solar inverter replacement](https://www.greentechrenewables.co.uk/solar-inverter-replacement), read 2026-09-11: every candidate on the page was refused
- [Solar Panels Network, solar inverter replacement](https://www.solarpanelsnetwork.com/blog/solar-inverter-replacement/), read 2026-09-11: every candidate on the page was refused
- [Heatable, solar panel costs](https://heatable.co.uk/solar/advice/solar-panel-costs), read 2026-10-11: every candidate on the page was refused
- [Renewables Excellence, solar panel installation costs UK](https://renewablesexcellence.co.uk/solar-panel-installation-costs-uk/), read 2026-10-11: every candidate on the page was refused
- [Great British Energy (greatbritishenergy.com), solar panel costs](https://greatbritishenergy.com/solar-panel-costs/), read 2026-10-11: every candidate on the page was refused
- [GoSolarCompare, how much do solar panels cost in 2026](https://gosolarcompare.uk/blog/how-much-do-solar-panels-cost-in-2026/), read 2026-09-11: every candidate on the page was refused
- [The Eco Experts, solar panel cost](https://www.theecoexperts.co.uk/solar-panels/cost), read 2026-10-11: every candidate on the page was refused
- [MyJobQuote, solar panel cleaning cost guide](https://www.myjobquote.co.uk/costs/solar-panel-cleaning-cost), read 2026-10-11: every candidate on the page was refused
- [Airtasker UK, solar panel cleaning cost](https://www.airtasker.com/uk/costs/solar-panel-cleaning/solar-panel-cleaning-cost/), read 2026-10-11: every candidate on the page was refused
- [Ineco Energy, commercial solar panel cost](https://inecoenergy.com/news/how-much-do-commercial-solar-panels-cost-in-the-uk/), read 2026-09-11: every candidate on the page was refused
- [Altus Safety, solar panel cleaning cost](https://www.altussafety.com/how-much-does-solar-panel-cleaning-cost/), read 2026-10-11: read in full and no accepted figure on the page

## Methodology

Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 7 of the 33 named sources that could be read published a usable figure; 26 published none and are recorded as not published, never filled in; 2 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 8 figures, never sentences; 415 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): the published-price index in the unit the market actually quotes: median, minimum and maximum £/kWp installed by system-size band (sub-30kWp, 30-100, 100-250, 250-500, 500kWp-1MW), £ per panel cleaned by array size, £ per maintenance visit and per kW per year on an O&M contract, £ per inverter replaced, and £/kWh for battery beside it - across every UK provider publishing a number, with the count and SHARE publishing versus quote-only, the size-discount curve measured rather than asserted, and the PAYBACK computed by joining £/kWp to the SEG export rate and the business electricity price so 'solar payback period' has an arithmetic answer rather than an anecdote; the US-state rows (FL, GA) are held on the same axis in $/W from US installers' own pages

## Sources

- [APN Solar, commercial solar costs](https://www.apnsolar.co.uk/commercial-solar-costs) (the publisher's own terms; quoted for reporting and comment)
- [Spectrum Energy Systems, commercial solar panels cost UK](https://spectrumenergysystems.co.uk/articles/commercial-solar-panels-cost-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Spectrum Energy Systems, solar panel installation cost UK 2026](https://spectrumenergysystems.co.uk/articles/solar-panel-installation-cost-uk-2026/) (the publisher's own terms; quoted for reporting and comment)
- [Commercial Solar Panels Installation, commercial solar panel cost](https://commercialsolarpanelsinstallation.co.uk/commercial-solar-panel-cost/) (the publisher's own terms; quoted for reporting and comment)
- [Commercial Solar Panels Installation, cost guide](https://commercialsolarpanelsinstallation.co.uk/cost/) (the publisher's own terms; quoted for reporting and comment)
- [Commercial Solar Panels Installation, cost per square foot](https://commercialsolarpanelsinstallation.co.uk/commercial-solar-panel-cost-per-square-foot/) (the publisher's own terms; quoted for reporting and comment)
- [Solar Panels for Factories, factory solar panel costs](https://solarpanelsforfactories.co.uk/factory-solar-panel-costs-uk-2025/) (the publisher's own terms; quoted for reporting and comment)
- [Empire Electrical Innovations, commercial solar panel installation cost 2026](https://www.empireelectricalinnovations.co.uk/post/commercial-solar-panel-installation-cost-2026-the-complete-uk-business-guide) (the publisher's own terms; quoted for reporting and comment)
- [nu.energy, commercial solar panel costs price breakdown](https://nu.energy/blog/commercial-solar-panel-costs-uk-price-breakdown) (the publisher's own terms; quoted for reporting and comment)
- [nu.energy, commercial solar panels cost UK guide 2026](https://nu.energy/blog/commercial-solar-panels-cost-uk-guide-2026) (the publisher's own terms; quoted for reporting and comment)
- [Solar4Good, commercial solar costs UK 2026](https://solar4good.co.uk/blogs/commercial-solar-cost-uk-2026/) (the publisher's own terms; quoted for reporting and comment)
- [Solar Panels for Businesses, commercial solar panel cost 2026](https://solarpanelsforbusinesses.co.uk/blog/commercial-solar-panel-cost-uk-2026/) (the publisher's own terms; quoted for reporting and comment)
- [Astound Cleaning, commercial solar panel cleaning cost](https://www.astoundcleaning.co.uk/commercial-solar-panel-cleaning-cost) (the publisher's own terms; quoted for reporting and comment)
- [Solar Panels for Businesses, solar panel cleaning cost UK](https://solarpanelsforbusinesses.co.uk/solar-panel-cleaning-cost-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Same Day Jetwash, solar panel cleaning cost UK](https://samedayjetwash.com/guides/solar-panel-cleaning-cost-uk) (the publisher's own terms; quoted for reporting and comment)
- [Solar Cleaning South West, commercial solar panel cleaning costs](https://solarcleaningsouthwest.co.uk/commercial-solar-panel-cleaning-costs-in-the-uk-complete-pricing-guide/) (the publisher's own terms; quoted for reporting and comment)
- [Arc Renewables, solar power maintenance costs in the UK](https://www.arcrenewables.co.uk/solar-power-maintenance-costs-in-the-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Solar Service UK, solar panel repair costs](https://solarservice.uk/blog/how-much-does-solar-panel-repair-cost-in-the-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Smart Solar Homes, replacing a solar inverter](https://smartsolarhomes.co.uk/articles/replacing-solar-inverter-uk) (the publisher's own terms; quoted for reporting and comment)
- [Simple Green Energy, solar inverter replacement cost UK](https://www.simplegreenenergy.org/solar-inverter-replacement-cost-uk/) (the publisher's own terms; quoted for reporting and comment)
- [GreenMatch, inverter replacement](https://www.greenmatch.co.uk/solar-energy/inverter-replacement) (the publisher's own terms; quoted for reporting and comment)
- [Best Builders, solar panel repair cost UK](https://www.bestbuilders.co.uk/costs/solar-panel-repair-cost-uk) (the publisher's own terms; quoted for reporting and comment)
- [Greentech Renewables UK, solar inverter replacement](https://www.greentechrenewables.co.uk/solar-inverter-replacement) (the publisher's own terms; quoted for reporting and comment)
- [Solar Panels Network, solar inverter replacement](https://www.solarpanelsnetwork.com/blog/solar-inverter-replacement/) (the publisher's own terms; quoted for reporting and comment)
- [Heatable, solar panel costs](https://heatable.co.uk/solar/advice/solar-panel-costs) (the publisher's own terms; quoted for reporting and comment)
- [Renewables Excellence, solar panel installation costs UK](https://renewablesexcellence.co.uk/solar-panel-installation-costs-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Great British Energy (greatbritishenergy.com), solar panel costs](https://greatbritishenergy.com/solar-panel-costs/) (the publisher's own terms; quoted for reporting and comment)
- [GoSolarCompare, how much do solar panels cost in 2026](https://gosolarcompare.uk/blog/how-much-do-solar-panels-cost-in-2026/) (the publisher's own terms; quoted for reporting and comment)
- [The Eco Experts, solar panel cost](https://www.theecoexperts.co.uk/solar-panels/cost) (the publisher's own terms; quoted for reporting and comment)
- [MyJobQuote, solar panel cleaning cost guide](https://www.myjobquote.co.uk/costs/solar-panel-cleaning-cost) (the publisher's own terms; quoted for reporting and comment)
- [Airtasker UK, solar panel cleaning cost](https://www.airtasker.com/uk/costs/solar-panel-cleaning/solar-panel-cleaning-cost/) (the publisher's own terms; quoted for reporting and comment)
- [Checkatrade, solar panel cleaning cost guide](https://www.checkatrade.com/blog/cost-guides/solar-panel-cleaning-cost/) (the publisher's own terms; quoted for reporting and comment)
- [Ineco Energy, commercial solar panel cost](https://inecoenergy.com/news/how-much-do-commercial-solar-panels-cost-in-the-uk/) (the publisher's own terms; quoted for reporting and comment)
- [Altus Safety, solar panel cleaning cost](https://www.altussafety.com/how-much-does-solar-panel-cleaning-cost/) (the publisher's own terms; quoted for reporting and comment)
- [mcscertified.com](https://mcscertified.com/find-an-installer/) (the publisher's own terms; quoted for reporting and comment)

## Cite or embed

- The median published figure in the Commercial Solar Price Index is 750 GBP across 8 figures from 7 sources' own pages (range 700 to 900 GBP), read 11 October 2026.
- 7 of the 33 named sources read in full publish a figure; 26 publish none, read 11 October 2026.
- Commercial Solar Price Index, system size band 100-250: median 750 GBP across 1 source, read 11 October 2026.
- The median is unchanged since 26 September 2026 (was 750 GBP across 7).

Cite as: "Roofing Quotes UK Commercial Solar Price Index", updated 2026-10-19, https://roofingquotesuk.com/datasets/commercial-solar-price-index/.

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